scholarly journals Diagnostic Significance of Brainstem Auditory Evoked Responses in Acoustic Neurinomas and Other Posterior Fossa Lesions

1979 ◽  
Vol 19 (7) ◽  
pp. 605-615 ◽  
Author(s):  
Isao HASHIMOTO ◽  
Yoji ISHIYAMA ◽  
Genkichi TOTSUKA ◽  
Hiroshi MIZUTANI
Keyword(s):  
Posterior Fossa ◽  
Evoked Responses ◽  
Diagnostic Significance ◽  
Auditory Evoked Responses ◽  
Acoustic Neurinomas

scholarly journals Brainstem auditory evoked response: application in neurology

1982 ◽  
Vol 40 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Carlos A. M. Guerreiro ◽  
Bruce L. Ehrenberg
Keyword(s):  
Multiple Sclerosis ◽  
Ct Scan ◽  
Posterior Fossa ◽  
Clinical Test ◽  
Evoked Responses ◽  
Posterior Fossa Tumors ◽  
Auditory Evoked Responses ◽  
Auditory Evoked Response ◽  
Non Invasive ◽  
Brainstem Auditory Evoked Response

The tecnique that we use for eliciting brainstem auditory evoked responses (BAERs) is described. BAERs are a non-invasive and reliable clinical test when carefully performed. This test is indicated in the evaluation of disorders which may potentially involve the brainstem such as coma, multiple sclerosis posterior fossa tumors and others. Unsuspected lesions with normal radiologic studies (including CT-scan) can be revealed by the BAER.

Brain Stem Auditory Evoked Responses

2009 ◽  
Vol 62 (1) ◽  
pp. 64-64
Author(s):  
Khalil Kayed ◽  
Reidar Kloster
Keyword(s):  
Brain Stem ◽  
Evoked Responses ◽  
Auditory Evoked Responses

State-Dependent Variations in Brainstem Auditory Evoked Responses in Human Subjects

1984 ◽  
Vol 59 (3) ◽  
pp. 731-738 ◽  
Author(s):  
E. A. Sersen ◽  
J. Majkowski ◽  
J. Clausen ◽  
G. M. Heaney
Keyword(s):  
Clinical Significance ◽  
Human Subjects ◽  
General Tendency ◽  
Evoked Responses ◽  
Brain Areas ◽  
Auditory Evoked Responses ◽  
State Dependent

BAERs from 16 subjects during 3 sessions varied in the latency or amplitude of some components depending upon level of arousal as indicated by EEG patterns. There was a general tendency for activation to produce the fastest responses with the largest amplitudes and for drowsiness to produce the slowest responses with the smallest amplitudes. The latency of P2 was significantly prolonged during drowsiness, relative to those during relaxation or activation. For right-ear stimulation, P5 latency was longest during drowsiness, and shortest during activation while for left-ear stimulation the shortest latency occurred during relaxation. The amplitudes of Wave II and Wave VII were significantly smaller during drowsiness than during activation. Although the differences were below the level of clinical significance, the data indicate a modification in the characteristics of brainstem transmission as a function of concurrent activity in other brain areas.

Neonatal risk factors and risk scores including auditory evoked responses

1998 ◽  
Vol 157 (3) ◽  
pp. 230-235 ◽  
Author(s):  
J. W. Pasman ◽  
J. J. Rotteveel ◽  
B. Maassen ◽  
R. de Graaf ◽  
A. A. Kollée
Keyword(s):  
Risk Factors ◽  
Risk Scores ◽  
Evoked Responses ◽  
Auditory Evoked Responses ◽  
Neonatal Risk Factors

Auditory Evoked Responses in Normal Hearing Adults and Children Before and During Sedation

1969 ◽  
Vol 12 (2) ◽  
pp. 394-401 ◽  
Author(s):  
Paul Skinner ◽  
Frank Antinoro
Keyword(s):  
Preschool Children ◽  
Evoked Potential ◽  
Normal Hearing ◽  
Auditory Stimuli ◽  
Evoked Responses ◽  
Auditory Evoked Responses ◽  
Adults And Children ◽  
Awake Condition ◽  
Wave Complex ◽  
Prominent Peak

Averaged evoked responses (AER) to auditory stimuli presented to young children and adults were compared between awake and induced sleep conditions. Eight adults and twenty preschool children with normal hearing were tested before and during sedation at two suprathreshold levels with tone pips centered at 510, 1020, and 2040 Hz. Responses obtained during sedation assumed a distinctly different wave complex than those obtained under the awake condition. The P2 peak that is most prominent in the AERs obtained from awake subjects was diminished considerably under sedation and P3 became the prominent peak. Moreover, the P3 peaks in the AERs obtained under sedation were of considerably greater amplitude than the P2 peaks obtained in the awake condition. In all cases where responses were obtained from awake subjects, greater amplitude responses were obtained during sedation. The use of sedation with the preschool children proved to be most important in obtaining more detectable responses and permitting evoked potential audiometry with otherwise unmanageable children.

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